NF-8601W network tester for cables: cat5, cat6, coaxial, telephone, POE function (decoupling pins with voltage on them and voltage value), PING test, Wiremap, identifies short-circuit, interrupted or cross connection cables, crosstalk test for (distance = 20-2000m), Capacitive method, 3% measuring precision, calibration for a particular type of cable, calibration cable length over 10m (maximum 9 calibrations can be saved), accurately locates the position where the cable is interrupted or shorted, tracing function (new), cable voltage detector (50V-1000V), 8 remote testers for 8 cables simultaneously, 2.8 "LCD display, memory, import/export data to the computer, automatic delay with delay, rechargeable Lithium battery 3.7V/1.8A, battery alarm, operating temperature -10 + 60 degrees Celsius, humidity 20% -70%